CARDSPEED - Card Readers and Memory Cards

Transcend Ultra Speed 133x CF 16GB

For general information and other test results, see the overview  UDMA CompactFlash Cards .

Specifications

Model: TRANSCEND
Firmware: 20070831
Type: CF Removable (848A) + ATA Fixed (044A)
CF-ATA Modes: PIO-6, MDMA-4, UDMA-4
Memory Mode: 80ns
Size: 16039018496 Bytes = 15296MB ~ 14.93GB
Sectors: 31326208 Sectors, LBA (16383/15/63)

Test Results  Read  Write
FireWire CF Reader  34.26MB/s 233x  15.26MB/s 104x
CF SATA Adapter   34.22MB/s 233x  15.06MB/s 102x

The card is labeled 133x, and the results would be OK for a 133x card. But there is a press release stating 45MB/s read and 21.5MB/s write rate.

Important Note: This card shows very strange behaviour regarding the actual data that is written to the card. Writing only zeroes or only ones can be done at 24-25MB/s, similar data rates can be achieved with repeated byte patterns. But once irregular data is written, the transfer rate drops. Copying a large video file of about 600MB to the card resulted in a write rate of about 10MB/s.

This means that certain benchmark programs might report a higher write rate than the write rate stated here, but with random or even irregular data patterns, the stated rate is the maximum. It takes a little more than this to fool CARDSPEED!

CF FireWire Reader

The test setup:
Transcend Ultra Speed 133x CF, TS16GCF133
Hama 55352 CF FireWire reader, Oxford FW 912 controller
TI TSB82AA2/TSB81BA3 FireWire, TI OHCI 1394 Driver
Read/Write directly from/to the media, no filesystem involved
Read/Write rates taken with a sample size of 4MB, 3824 samples

The test showed an average trasfer rate of 34.26MB/s (233x) read and 15.26MB/s (104x) write.

Transcend Ultra Speed 133x CF 16GB FireWire Read/Write

CF to SATA Adapter

The test setup:
Transcend Ultra Speed 133x CF, TS16GCF133
CF to SATA adapter with Marvell 88SA8040-TBC1 controller
ICH6R SATA Host
Read/Write directly from/to the media, no filesystem involved
Read/Write rates taken with a sample size of 4MB, 3824 samples

The test showed an average rate of 34.22MB/s (233x) read and 15.06MB/s (102x) write.

Transcend Ultra Speed 133x CF 16GB SATA Read/Write


Hans-Jürgen Reggel   ·   http://www.hjreggel.net/cardspeed/   ·   2007-09-21 ~ 2008-05-07